/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.felix.ipojo.manipulator.metadata.annotation.visitor.generic;

import org.apache.felix.ipojo.manipulator.metadata.annotation.ComponentWorkbench;
import org.apache.felix.ipojo.metadata.Attribute;
import org.apache.felix.ipojo.metadata.Element;
import org.objectweb.asm.Type;
import org.objectweb.asm.tree.MethodNode;

import java.lang.annotation.ElementType;

/**
 * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a>
 */
public class ParameterGenericVisitor extends RootGenericVisitor {
    private int index;
    private MethodNode node;

    public ParameterGenericVisitor(ComponentWorkbench workbench, Element element, MethodNode node, int index) {
        super(workbench, element, ElementType.PARAMETER);
        this.node = node;
        this.index = index;
    }

    @Override
    public void visitEnd() {
        super.visitEnd();

        String type = Type.getArgumentTypes(node.desc)[index].getClassName();
        // TODO Is the 'index' attribute required ?
        element.addAttribute(new Attribute("index", Integer.toString(index)));
        element.addAttribute(new Attribute("type", type));
        element.addAttribute(new Attribute("constructor-parameter", Integer.toString(index)));

    }
}
